Drier



` E. B. AYRES AND T. H. RHOADS.

DRIER. APPLlcATloN HLED 1uLY1.1921.

Patented Juy 18, 1929.

2 SHEETS-SHEET l.

E. B. AYRES AND T. H. HHOADS.

DRIER. MPL10/111011F1LED1uLY1,1921.

Patented July 18,- 1922,.

area stares PATENT @FENCE ELWOOD B. AYRES AND THOMAS H. RHOADS, 0F PHILADELPHIA, PENNSYLVANIA,

WAR

ASSIGNORS T0 PROCTOR & SCH SYLVANIA, A

To all 107mm t may concern.'

Be it known that we, and THOMAS H.. United States, Pennsylvania, have invented provements in Driers, of which the following is a specification.

One object of our invention is to improve the construction of machines for drying skins so as to utilize the entire floor space l() ccupied by the machine with drying chamers.

ed air direct p fans, at a greater speed than the conveyer in the chambers through which the air is returned to the fans.

In the accompanying drawings:

ig. 1 is a plan view of our improved drier;

Fig. 2 is a side view; and

Fig. 3 is an end view.

1 is the frame of the drier, which may be madeiin any suitable manner. In this frame are three longitudinal drying compartments. 2 is the central compartment and 3 and 4 are the side compartments. In the central compartment, in the present instance, are two endless conveyers 5 and 6 adapted to he ends of the sprocket wheels 7 and 8 at t drier. In the side compartments 3 and 4 are conveyers 5a and 6a adapted to wheels 7 and 8a. rThe wheels 7, 7a are driven in any suitable manner. In the present instance, independently, Las shown in Figs. l and 2, and t e central conveyers are driven at a greater speed than the si e 'conveyers In some cases, in -drying certain materials, all of the conveyers may be driven at the same speed.

e sprocket wheels 7 are short shafts 9 adapted to on each shaft is a sprocket wheel 10 a sprocket wheel 11 driven from a power shaftl13 through worm and worm gearing, shownclearly in Fig 2 he shafts 9a, on whichthe sprocketv wheels 7a are mounted, are 'driven ,in the same manner from a' power shaft 13a, Fig. d, as each power shaftis independently .Specification of Letters Patent. Application flied July i, 192i.

sprocket mounted on v' suitable bearings TZ, INCORPORATED, OF lPHILADELPI-IIA, PEN N CORPORATION 0F PENNSYLVANIA.

l Patented July 18, 1922. serial no. 481,793.

driven from an overhead shaft, the speed of the conveyers in the several compartments can be easily regulate ocated in the upper portion of the central chamber 2 are a series of circulating d on a vertia longitudinal shaft an are so located, direction, as

fans, are a series of transversely arranged heating pipes 18, 4so that the entire upper portion of the rier is occupied by heating pipes, while the lower portion `ids utilized as drying chambers. ity of the drier is materially increased over the type havin sides of the drying chambers.

As the skins being dried in the central chamber 2 receive the full blast of they hot dry more rapidly in the side cham'- bers-3 and 4, therefore, it is preferable to convey the skins more rapidly through the central chamber than through the side chambers, as hereinbefore described.

19 are suction fans located at any suitable point. These fans connect through trunks 20 with the upper portion o f the heating chamber to carry oil" a certain amount of moist air. The fans may be suitable manner. d

21 are intake openings for supplying fresh air to the air in circulation.

I n the d sticks 22 5 an 6.and the s ins are hung on these sticks, but it will be understood that other well nown forms o carriers may be used 1. The combination in a drier, of a casing enclosin three longitudinal chambers arranged side by side; a conveyer forcarrying material to be dried in each chamber; a cen- Consequently, the capaci driven in any tral row of circulating fans in the upper portion of the central drying chamber; and means for heating the air in circulation.

2. The combination in a drier, of a casing enclosing three longitudinal chambers arranged side by side; a conveyer for carry ing material to be dried in each chamber; a central row of circulating fans` in the upper portion of the central drying chamber; a series of heating pipes in the upper portion of the drier; and means for driving the fans so that the air will circulate down wards in the central chamber and upwards in the side chambers.

3. The combination in a drier, of'a casing enclosing three chambers arranged side by side; means, in each chamber, for conveying material to be dried; means for circu lating heated air downwards in one chamber and upwards in the other chambers; and

ers located in the vcentral chamber; means for driving the conveyers in the side chambers; a series of fans located in the upper portion of the central chamber and driven so as to cause the air to4 circulate downwards in the central chamber; and heating means located in the upper portion of each chamber.

ELWOD B. AYE-ES. THOMAS H. RHOADS. 

